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3/10/2021 State -co -us Executive Branch Mail - Re: Alluvial Well GW-N40 - New Horizon Mine <br />STATE OF DRMS CoalAdmin - DNR, DNR <dnr drms coal admin@state.co.us> <br />COLORADO — — — <br />Re: Alluvial Well GW-N40 - New Horizon Mine <br />1 message <br />Binns - DNR, Janet <janet.binns@state.co.us> Tue, Mar 9, 2021 at 5:32 PM <br />To: "Tennyson, Tony (Colowyo)" <tennyson@tristategt.org>, laserfische <dnr—drms—coal—admin@state.co.us> <br />Hello Tony, <br />Thank you for notifying the Division regarding the flooding and inaccessibility of Groundwater Well GW- <br />N40. The Division understands that ERMR is unable to sample this monitoring point during first quarter <br />2021. The Division also understands that access to this monitoring well may be impeded in the future. <br />Please continue to keep us informed of ERMR's plans for disposition of this well. <br />Thank you, <br />Janet Binns <br />Environmental Protection Specialist III <br />Coal Regulatory Program <br />Mobile phone: 720-688-0626 <br />P 303.866.3567 ext 8107 1 F 303.832.8106 <br />1313 Sherman St., Room 215, Denver, CO 80203 <br />janet.binns@state.co.us I https://drms.colorado.gov <br />C 0 L 0 R A D 0 <br />C40 <br />n-..a Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />On Tue, Mar 9, 2021 at 4:14 PM Tennyson, Tony (Colowyo) <tennyson@tristategt.org> wrote: <br />Janet, <br />As we discussed on the phone this afternoon, our staff is physically unable to access, due to flooding along Calamity <br />Draw, well GW-N40 for the 1 st quarter 2021 sample. We are required by our groundwater monitoring program in <br />Section 2.04.7 (Permit No. C-1981-008), to sample this well each quarter of the year. Due to this access constraint and <br />the possibility that the well may be damage due surface water flows, we will be working with the Division in the near <br />term to revise the two alluvial monitoring wells (GW-N39 and GW-N40) along Calamity Draw. If you should require any <br />additional information on this topic please feel free to contact me at your convenience. <br />Tony Tennyson <br />Senior Environmental Engineer <br />Tri-State Generation and Transmission Association, Inc. <br />Office: 970.824.1232 <br />https://mail.google.com/mail/b/ALGkd0ygM2169BSiRfHz65TeZ5zEtEAOzNOTy8WZGjZecjJu5BsH/u/O?ik=deb7fOcd20&view=pt&search=all&permthid=... 1 /2 <br />